Exchange issue - Consumer Complaint for Clicks Store - Head Office

I bought a portable blender from clicks Jabulani mall. And it stopped working first time using it whilst making a smoothie. I took back the blander to clicks waterfall corner and they refused to exchange it for me simply because I didn’t have a receipt, I wasn’t even asking for a refund I just wanted a blander that works. Yes I misplaced the original invoice had I known that the blander was gonna stop working I was gonna keep it safe. I was told by management that they can’t assist me so I left the blander at the store because I doesn’t make sense to take home something that doesn’t work. What am I supposed to do with it? I bought this blander 2weeks ago (October 2020) on promotion. I am highly disappointed. That’s just how my money went....down the drain! I paid R350 for a blander that doesn’t work.